how to recover from drugs?

I am really not in a state where I can read some stupid and rude comments about my husband so just don't even start. 
My husband just started taking drugs again, he was clean for 2 years but we had such a hard time the past year I actually thought he'd go back to taking drugs earlier. 
He had cancer, 4 cousins of mine passed away due to the war in Iraq, they were like my brothers we all including my husband grew up in the same neighborhood. 
A few weeks after that our daughter passed away at 32 weeks. 
I know it's not a reason to take drugs again but I can actually somehow understand him.
He never wanted any help so he somehow managed to get clean by himself but this time I don't think it will work. 
He's in the music business so in the public eye and going to rehab would not just ruin his career but also we don't want our kids to read about such stuff on the internet when they're older.
What are other options? I'm so lost I've googled but I honestly still don't know.
I know we're not supposed to post anonymous but I don't want to show everyone who I am.